Jami` at-Tirmidhi Book 47, Hadith 360
from Ibn Abbas, regarding the saying of Allah, the Most High: When believing women come to you as emigrants, examine them. He said: “When a woman come to the Prophet to accept Islam, she would have to take and an oath by Allah: ‘I have not left out of anger with my husband, I have not left except out of love for Allah and His Messenger.’”]
“Umm Salamah Al-Ansariyyah narrated to us, she said: ‘A woman said: “What is this Ma’ruf for which we are not to disobey in?” He (pbuh) said: “” I said: “O Messenger of Allah! Verily Banu so-and-so comforted me in the case of my uncle, and I must reciprocate for them.’ But he refused to allow me. So I asked him again numerous times, then he permitted me to reciprocate for them. So after reciprocating for the, I did not wail for anyone else until this time. And there does not remain a woman except that she has wailed besides me.’”
“A group of us Companions of the Messenger of Allah sat talking, and we said: ‘If we knew which deed was most beloved to Alllah then we would do it.’ So Allah, Most High, revealed: Whatsoever is in the heavens and whatsoever is on the earth glorifies Allah. And He is Almighty, the All-Wise. O you who believe! Why do you say that which you do not do?” Abdullah bin Salam said: “So the Messenger of Allah recited it to us.” Abu Salamah (one of the narrators) said: “So Ibn Salam recited it to us.” Yahya (one of the narrators) said: “So Abu Salamah narrated it to us.” Ibn Kathir said: “So Al-Awza’i recited it to us.” Abdullah said: “So Ibn Kathir recited it to us.”