Sunan Abi Dawud, Hadith 3246

Referring to the story of a bedouin, Talhah b. 'Ubaid Allah reported the Prophet as saying: He became successful, by his father, if he speaks the truth, he will enter paradise, by his father, if he speaks truth.

حَدَّثَنَا سُلَيْمَانُ بْنُ دَاوُدَ الْعَتَكِيُّ، حَدَّثَنَا إِسْمَاعِيلُ بْنُ جَعْفَرٍ الْمَدَنِيُّ، عَنْ أَبِي سُهَيْلٍ، نَافِعِ بْنِ مَالِكِ بْنِ أَبِي عَامِرٍ عَنْ أَبِيهِ، أَنَّهُ سَمِعَ طَلْحَةَ بْنَ عُبَيْدِ اللَّهِ يَعْنِي فِي، حَدِيثِ قِصَّةِ الأَعْرَابِيِّ قَالَ النَّبِيُّ صلى الله عليه وسلم ‏ "‏ أَفْلَحَ وَأَبِيهِ إِنْ صَدَقَ دَخَلَ الْجَنَّةَ وَأَبِيهِ إِنْ صَدَقَ ‏" ‏ ‏.‏

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also referenced under: Hadith 3252 (DarusSalam)