Hadith of Sufyan al-Thaqafi (may Allah be pleased with him)

حَدِيثُ سُفْيَانَ الثَّقَفِيِّ (١)، ١٩٤٣١ - حَدَّثَنَا هُشَيْمٌ، عَنْ يَعْلَى بْنِ عَطَاءٍ، عَنْ عَبْدِ اللهِ بْنِ سُفْيَانَ الثَّقَفِيِّ، عَنْ أَبِيهِ، أَنَّ رَجُلًا قَالَ: يَا رَسُولَ اللهِ، وَقَدْ، قَالَ هُشَيْمٌ: قُلْتُ: يَا رَسُولَ اللهِ، (٢) مُرْنِي فِي الْإِسْلَامِ بِأَمْرٍ لَا أَسْأَلُ عَنْهُ أَحَدًا بَعْدَكَ. قَالَ: " قُلْ آمَنْتُ بِاللهِ، ثُمَّ اسْتَقِمْ ". قَالَ: قُلْتُ: فَمَا أَتَّقِي، فَأَوْمَأَ (٣) إِلَى لِسَانِهِ " (٤)، ،

It is narrated from Sufyan bin Abdullah (may Allah be pleased with him) that I once submitted in the court of the Messenger (ﷺ), "O Messenger of Allah (ﷺ), tell me something about Islam such that after you, I would not need to ask anyone else about it." The Noble Prophet (ﷺ) said, "First, declare with your tongue that I have believed in Allah, then remain steadfast upon it always." I asked, "What should I beware of?" Upon this, the Noble Prophet (ﷺ) pointed towards his tongue.