He was elected by God as the fourth shining star in the sky of Imamate to be used as a sample for prosperity both here and in the hereafter by people from all stands of life.
His nephew says: I was encouraged by Fatima, daughter of Imam Hussein(s), to serve Imam Sajjad(s). Whenever I sat next to him, a door to goodness opened up to me. I got awe and reverie towards God inside me because of his reverie towards God inside me because of his reverie towards Allah. I learned a piece of useful knowledge from my association with him.1
Ibn Shahab Zohri says: the best member of Bani Hashem was Imam Zainol Abedin(s).
Saeed Ibn Kolthum says: I was at the presence of Imam Sadiq(s). We talked about Imam Ali(s). The sixth Imam praised Imam Ali(s) in such a way as he deserved it.
Then, he said: He never ate a haram (unlawful, Islamically prohibited ) food up to his last day of life. And he chose the more difficult plan of any two plans for God. Whenever the Prophet met with an accident, he was asked to help him out. Nobody except him could engage in prayers such as the Prophet (s). At the time of action, he looked like a person who was between the paradise and the hell. He hoped for God’s reward and was frightened of His punishment. To satisfy God, he freed one thousand slaves through his hard works. The food of his family members was a mixture of oil, vinegar and dates. His dress was made of canvas. If his clothes sleeves were long he would ask for a pair of scissors to cut them. Among his Household he was unique in dress and jurisprudence.1
A cursory look at the narrations on that Imam and attention to the depth of the invocation received from him will depict the sublime personality and the Godly–based human features of this sample of virtues, truths and genuine prosperity.
Zohri says: when I was with Imam Sajjad (s), we met Abdol Malik Ibn Marvan. The effects of worship on the face of Imam Sajjad (s) caused Marvan’s great surprise.
Marvan told Imam Sajjad (s): From your countenance I can observe the effects of heavy worship. While you have a good record with God and you are part of the body of the Prophet (s) and you enjoy a great amount of virtues, you still engage in worship no less than Prophet, Ali, Fatima, Hassan and Hossein (s).
Marvan was engaged in praising Imam Sajjad (s) while the fourth Imam, said: “What you ascribed to me is not mine; rather, it belongs to the mercy and benevolence of God. It is just a manifestation of the great friend’s confirmation. Tell me with what sort of power should I compensate for all this asset? The Prophet continued with his prayers so excessively that his legs used to swell. He engaged so much in fasting that he used to have dried mouth. They asked the Prophet: is it not the case that according to Holy Quran you are pardoned? Then, why so much prayers?
The great Prophet (s) replied: Don’t you want me to be a thankful servant of God? I should thank God for selecting me for worship and he let me come out successful from a difficult exam. I only will thank Him. I swear to God I am not able to thank him for one tenth of all his sustenance and assets he has bestowed upon me even if my limbs go apart and my eyes pop out. I swear to God I will not quit praying him so much so that he may see me day and night like this.
If I did not have to carry the compulsory tasks towards my Household and people in general, I would gaze at the creation all my life so that the Great Allah may know that He is the best commander”. Then Imam Sajjad (s) burst into tears and Abdol Malik too started crying. Then Imam said, “How far is the distance between a Hereafter–seeker and his trial to get at it and the man who concentrates on the world, but lacks everything in the Hereafter”.
Abdollh Mobarik Says: I was going to Mecca when I saw a boy of seven or eight years of age going steadily towards the Harem (Mecca). I asked my self how it was possible for such a young child to cross the deserts to reach to Mecca. I went up to him asking where he was coming from. He said: from God. I asked him where he was headed for, He replied: towards God. I asked him: with whom did you pass this horrible desert? He answered: with the Benevolent God. I asked him where his camel was. He replied: My sustenance is virtue, my camel is my leg, and my objective is the Great Friend. I asked him which tribe he was from. He replied: Motallabi. I asked him who his father was. He replied: I am Hashemid. I told him to be more clear; He answered. I am Alavi, Fatemi. I asked him if he had written a poem. His answer was positive. I asked him to read. He read something with the following content:
“It is us who gather around the Kouthar Spring. We let the qualified thirsty ones drink from it and we will protect them on the Doomsday. Nobody could get to prosperity without our help. Anybody who has connection with us becomes prosperous. One who, through his faith and actions, makes us happy will become delighted. And any one who rose against us in enmity had some problems in his roots. Any one who confiscated our rights would be accountable to God in the Hereafter”.
When he finshed reading this poem, he disappeared. I went to Mecca. I carried out the rituals. On the way back, I saw a group of people sitting on a big circle. I suddenly saw that young man among them. I asked people: who is this ellegant young man? They replied: It is Ali Ibn Hossein (s).
source : The land of lovers by Professor Hossein Ansariann