Saʿīd b. al-Rabīʿ > Shuʿbah > Yaʿlá b. ʿAṭāʾ > ʿAbdullāh b. Sufyān from his father

I said, "O Messenger of Allah, tell me about an action in Islam that I will not have to seek anyone's help for." He said, "Fear Allah and be upright." I said, "Then what?" He pointed to his tongue and said. – Sound Chain

أَخْبَرَنَا سَعِيدُ بْنُ الرَّبِيعِ حَدَّثَنَا شُعْبَةُ عَنْ يَعْلَى بْنِ عَطَاءٍ قَالَ سَمِعْتُ عَبْدَ اللَّهِ بْنَ سُفْيَانَ عَنْ أَبِيهِ قَالَ

قُلْتُ يَا رَسُولَ اللَّهِ أَخْبِرْنِي بِعَمَلٍ فِي الْإِسْلَامِ لَا أَسْأَلُ عَنْهُ أَحَدًا قَالَ «اتَّقِ اللَّهَ ثُمَّ اسْتَقِمْ» قَالَ قُلْتُ ثُمَّ أَيُّ شَيْءٍ؟ قَالَ فَأَشَارَ إِلَى لِسَانِهِ – إسناده صحيح