Sunan Abi Dawud 5221
سنن أبي داود#5221Sahihحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا الْمُعْتَمِرُ، عَنْ إِيَاسِ بْنِ دَغْفَلٍ، قَالَ رَأَيْتُ أَبَا نَضْرَةَ قَبَّلَ خَدَّ الْحَسَنِ بْنِ عَلِيٍّ عَلَيْهِمَا السَّلاَمُ .
Narrated AbuNadrah: Ilyas ibn Dighfal said: I saw AbuNadrah kissing on the cheek of al-Hasan
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Al-AlbaniSahih Isnaad Maqtu
Muhammad Muhyi Al-Din Abdul HamidSahih Isnaad Maqtu
Zubair Ali ZaiIsnaad Sahih
In-book reference: 43:449