Al-Adab Al-Mufrad, Book 41, Hadith 13 (In-Book) ⓘ
'Abdu'r-Rahman ibn Sa'd said, "Ibn 'Umar's foot went to sleep and a man said to him, 'Mention the person you love most.' He said, 'Muhammad.'"
حَدَّثَنَا أَبُو نُعَيْمٍ، قَالَ: حَدَّثَنَا سُفْيَانُ، عَنْ أَبِي إِسْحَاقَ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ سَعْدٍ قَالَ: خَدِرَتْ رِجْلُ ابْنِ عُمَرَ، فَقَالَ لَهُ رَجُلٌ: اذْكُرْ أَحَبَّ النَّاسِ إِلَيْكَ، فَقَالَ: يَا مُحَمَّدُ.
also referenced under: Hadith 964 (Reference) & Book 41, Hadith 964 (English)