Sahih Muslim Book - 0, Hadith - 32

و حَدَّثَنِي مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ قُهْزَاذَ - مِنْ أَهْلِ مَرْوَ- قَالَ سَمِعْتُ عَبْدَانَ بْنَ عُثْمَانَ يَقُولُ سَمِعْتُ عَبْدَ اللَّهِ بْنَ الْمُبَارَكِ يَقُولُ: الْإِسْنَادُ مِنْ الدِّينِ وَلَوْلَا الْإِسْنَادُ لَقَالَ مَنْ شَاءَ مَا شَاءَ. قَالَ و قَالَ مُحَمَّدُ بْنُ عَبْدِ اللَّهِ حَدَّثَنِي الْعَبَّاسُ بْنُ أَبِي رِزْمَةَ قَالَ سَمِعْتُ عَبْدَ اللَّهِ يَقُولُ: بَيْنَنَا وَبَيْنَ الْقَوْمِ الْقَوَائِمُ يَعْنِي الْإِسْنَادَ و قَالَ مُحَمَّدُ: سَمِعْتُ أَبَا إِسْحَقَ إِبْرَاهِيمَ بْنَ عِيسَى الطَّالَقَانِيَّ قَالَ قُلْتُ لِعَبْدِ اللَّهِ بْنِ الْمُبَارَكِ يَا أَبَا عَبْدِ الرَّحْمَنِ! الْحَدِيثُ الَّذِي جَاءَ: "إِنَّ مِنْ الْبِرِّ بَعْدَ الْبِرِّ أَنْ تُصَلِّيَ لِأَبَوَيْكَ مَعَ صَلَاتِكَ وَتَصُومَ لَهُمَا مَعَ صَوْمِكَ" قَالَ فَقَالَ عَبْدُ اللَّهِ يَا أَبَا إِسْحَقَ! عَمَّنْ هَذَا؟ قَالَ قُلْتُ لَهُ هَذَا مِنْ حَدِيثِ شِهَابِ بْنِ خِرَاشٍ فَقَالَ ثِقَةٌ عَمَّنْ؟ قَالَ قُلْتُ عَنْ الْحَجَّاجِ بْنِ دِينَارٍ قَالَ ثِقَةٌ عَمَّنْ؟ قَالَ قُلْتُ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ يَا أَبَا إِسْحَقَ إِنَّ بَيْنَ الْحَجَّاجِ بْنِ دِينَارٍ وَبَيْنَ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ مَفَاوِزَ تَنْقَطِعُ فِيهَا أَعْنَاقُ الْمَطِيِّ وَلَكِنْ لَيْسَ فِي الصَّدَقَةِ اخْتِلَافٌ. وَقَالَ مُحَمَّدٌ: سَمِعْتُ عَلِيَّ بْنَ شَقِيقٍ يَقُولُ سَمِعْتُ عَبْدَ اللَّهِ بْنَ الْمُبَارَكِ يَقُولُ عَلَى رُءُوسِ النَّاسِ: دَعُوا حَدِيثَ عَمْرِو بْنِ ثَابِتٍ فَإِنَّهُ كَانَ يَسُبُّ السَّلَفَ.

Muhammad bin 'Abdullah bin Quhzadh - from the people of Marw - narrated to me, he said: "I heard 'Abdan bin 'Uthman saying: "Abdullah bin Al-Mubarak said: "The chain (of narration) is part of religion, were it not for the chain, anyone could say whatever he wanted." He (Muslim) said: Muhammad bin 'Abdullah said: "Al-'Abbas bin Abi Rizmah said to me: 'I heard 'Abdullah say: "The criterion between us and other people is these lists," meaning the chain of narration. Muhammad said: "I heard Abu Ishaq Ibrahim bin 'Eisa At-Talaqani say: 'I said to 'Abdullah bin Al-Mubarak: "O Abu 'Abdur-Rahman, there is a Hadith which says: 'It is part of honoring one's parents in death after honoring them in life to pray on behalf of your parents when you pray, and fast on behalf of your parents when you fast."' 'Abdullah said: "O Abu Ishaq! From whom (did you get) this?" I said to him: "This Hadith is from Shihab bin Khirash." He said: "He is trustworthy. From whom did he get it?" I said: "From Al-Hajjaj bin Dinar." He said: "He is trustworthy. From whom did he get it?'" I said: "The Messenger of Allah (s.a.w) said." He said: "O Abu Ishaq, between Al-Hajjaj bin Dinar and the Prophet (s.a.w) there is a big gap which cannot be easily bridged. But there is no dispute concerning charity (given on behalf of deceased parents)." Muhammad said: "I heard 'Ali bin Shaqiq say: 'I heard 'Abdullah bin Al-Mubarak say, in front of the people: "Ignore the Ahadith of 'Amr bin Thabit, for he used to verbally abuse the Salaf."