Hazrat Fatima Zahra (peace be upon her) had a sublime and dignified position before the prophet of Islam (PBUH &P) due to her spiritual personality. It has been mentioned in Sunni sources that when Hazrat Fatima visited the Holy Prophet, not only the holy Prophet used to stand up before herm, he would go toward her and kissed her hands and made her sit in his own place.
Sunan Abu Dawood:2/522
Sunnah Tirmidhi:5/361
source : erfan.ir