Sunan Abi Dawud 20896
In-book no 392حَدَّثَنَا سُلَيْمَانُ بْنُ دَاوُدَ، حَدَّثَنَا إِسْمَاعِيلُ بْنُ جَعْفَرٍ الْمَدَنِيُّ، عَنْ أَبِي سُهَيْلٍ، نَافِعِ بْنِ مَالِكِ بْنِ أَبِي عَامِرٍ بِإِسْنَادِهِ بِهَذَا الْحَدِيثِ قَالَ " أَفْلَحَ وَأَبِيهِ إِنْ صَدَقَ دَخَلَ الْجَنَّةَ وَأَبِيهِ إِنْ صَدَقَ " .
This tradition has also been reported by Abu Suhail Nafi' b. Malik b. Abi 'Amir through a different chain of narrators. It adds: He will be successful, by his father, if he speaks the truth; he will enter Paradise, by his father, if he speaks the truth.