Sahih al-Bukhari 2323
صحيح البخاري#2323Sahihحَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، أَخْبَرَنَا مَالِكٌ، عَنْ يَزِيدَ بْنِ خُصَيْفَةَ، أَنَّ السَّائِبَ بْنَ يَزِيدَ، حَدَّثَهُ أَنَّهُ، سَمِعَ سُفْيَانَ بْنَ أَبِي زُهَيْرٍ ـ رَجُلاً مِنْ أَزْدِ شَنُوءَةَ ـ وَكَانَ مِنْ أَصْحَابِ النَّبِيِّ صلى الله عليه وسلم قَالَ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ " مَنِ اقْتَنَى كَلْبًا لاَ يُغْنِي عَنْهُ زَرْعًا وَلاَ ضَرْعًا، نَقَصَ كُلَّ يَوْمٍ مِنْ عَمَلِهِ قِيرَاطٌ ". قُلْتُ أَنْتَ سَمِعْتَ هَذَا مِنْ رَسُولِ اللَّهِ صلى الله عليه وسلم قَالَ إِي وَرَبِّ هَذَا الْمَسْجِدِ.
Narrated As-Sa'ib bin Yazid:Abu Sufyan bin Abu Zuhair, a man from Azd Shanu'a and one of the companions of the Prophet (ﷺ) said, "I heard Allah's Messenger (ﷺ) saying, 'If one keeps a dog which is meant for guarding neither a farm nor cattle, one Qirat of the reward of his good deeds is deducted daily." I said, "Did you hear this from Allah's Messenger (ﷺ)?" He said, "Yes, by the Lord of this Mosque
Scholarly Authentication
The label above is the grade most of these scholars gave, each scholar counted once — 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. When they judged only its chain of narrators (“Isnaad”), the label says “Sound chain”. Each scholar's own wording:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 41:4