Muwatta Malik, Book 15, Hadith 14 (USC-MSA) ⓘ
Yahya related to me from Malik that Abdullah ibn Dinar said, "I saw Abdullah ibn Umar prostrate twice in Surat al-Hajj (Sura 22)."
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ عَبْدِ اللَّهِ بْنِ دِينَارٍ، أَنَّهُ قَالَ رَأَيْتُ عَبْدَ اللَّهِ بْنَ عُمَرَ يَسْجُدُ فِي سُورَةِ الْحَجِّ سَجْدَتَيْنِ .
also referenced under: Book 15, Hadith 486 (In-Book)