Muwatta Malik
Book 9, Hadith 45
Arabic hadith text
حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ أَبِي جَعْفَرٍ الْقَارِئِ، أَنَّهُ قَالَ رَأَيْتُ عَبْدَ اللَّهِ بْنَ عُمَرَ إِذَا أَهْوَى لِيَسْجُدَ مَسَحَ الْحَصْبَاءَ لِمَوْضِعِ جَبْهَتِهِ مَسْحًا خَفِيفًا .
Translation
Yahya related to me from Malik that Abu Jafar al-Qari said, "Isaw Abdullah ibn Umar quickly brush away the small stones from theplace where he was going to put his forehead as he was going down intosajda."