صحیح ابن حبان
Ibn Hibban
كتاب الصلاة
Book of Prayer
باب صفة الصلاة - ذكر الأمر أن يقصد المرء في سجوده التراب إذ استعماله يؤدي إلى التواضع لله جل وعلا
Chapter on the Manner of Prayer – Command to aim for the ground in prostration as it leads to humility before Allah
1 hadith
Hadith 1913
Abu Salih narrates: I was present with the noble wife of the Prophet (peace be upon him), Sayyida Umm Salamah (may Allah be pleased with her). A young man from among her relatives came to her who had long hair. He stood up and began to perform prayer. When he was about to go into prostration, he blew first. So Sayyida Umm Salamah said: Do not do this, because the Prophet (peace be upon him) said to one of our black boys, "O Rabah, (during prostration) make your face dusty."