Sunan an-Nasa'i, Hadith 2936 ⓘ
It was narrated from Suwaid bin Ghafalah that Umar kissed the Black Stone and touched it, and said: "I saw Abdu Al-Qasim paying attention to you.
أَخْبَرَنَا مَحْمُودُ بْنُ غَيْلاَنَ، قَالَ حَدَّثَنَا وَكِيعٌ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنْ إِبْرَاهِيمَ بْنِ عَبْدِ الأَعْلَى، عَنْ سُوَيْدِ بْنِ غَفَلَةَ، أَنَّ عُمَرَ، قَبَّلَ الْحَجَرَ وَالْتَزَمَهُ وَقَالَ رَأَيْتُ أَبَا الْقَاسِمِ صلى الله عليه وسلم بِكَ حَفِيًّا .
also referenced under: Book 24, Hadith 0 (In-Book) & Volume 3, Book 24, Hadith 2939 (DarusSalam)