Muwatta Malik, Book 20, Hadith 26 (USC-MSA) ⓘ
Yahya related to me from Malik from a reliable source that Abdullah ibn Umar once entered ihram at Ilya (Jerusalem).
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنِ الثِّقَةِ، عِنْدَهُ أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ، أَهَلَّ مِنْ إِيلْيَاءَ .
also referenced under: Book 20, Hadith 734 (In-Book)