Safwan b. Ya'la b. Umayya reported that Ya'la used to say to 'Umar b. Khattab (Allah be pleased with him):
| Reference | : Sahih Muslim 1180c |
| In-book reference | : Book 15, Hadith 10 |
| USC-MSA web (English) reference | : Book 7, Hadith 2656 |
| (deprecated numbering scheme) |