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حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ حَدَّثَنَا مُوسَى الْجُهَنِيُّ حَدَّثَنِي مُصْعَبُ بْنُ سَعْدٍ عَنْ أَبِيهِأَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ لِجُلَسَائِهِ أَيَعْجِزُ أَحَدُكُمْ أَنْ يَكْسِبَ أَلْفَ حَسَنَةٍ فَسَأَلَهُ سَائِلٌ مِنْ جُلَسَائِهِ كَيْفَ يَكْسِبُ أَحَدُنَا أَلْفَ حَسَنَةٍ قَالَ يُسَبِّحُ أَحَدُكُمْ مِائَةَ تَسْبِيحَةٍ تُكْتَبُ لَهُ أَلْفُ حَسَنَةٍ وَتُحَطُّ عَنْهُ أَلْفُ سَيِّئَةٍقَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ

Narrated to us [Muhammad bin Basysyar], narrated to us [Yahya bin Sa'id], narrated to us [Musa Al Juhani], narrated to me [Mush'ab bin Sa'd] from [his father] that the Messenger of Allah, peace and blessings be upon him, said to the people sitting with him: Is one of you unable to acquire a thousand good deeds?" then there was a person from those sitting with him who asked: how does one of us acquire a thousand good deeds? He said: "One of you says tasbih a hundred times, then a thousand good deeds are recorded for him, and a thousand bad deeds are erased from him." Abu Isa said: this hadith is hasan sahih."