Ibn 'Abbas told Shahr (ibn Hawshab), "While the Prophet, may Allah bless him and grant him peace, was sitting in the courtyard of his house in Makka, 'Uthman ibn Maz'un passed by and smiled at the Prophet, may Allah bless him and grant him peace. The Prophet, may Allah bless him and grant him peace, said to him, 'Why don't you sit down?' 'I will,' he said. So the Prophet, may Allah bless him and grant him peace, sat facing him. While he was conversing with him, the Prophet, may Allah bless him and grant him peace, stared at the sky and said, 'A messenger from Allah, 'Abdullah came to me just now when you sat sown?' He asked, 'What did he say to you?' He said, 'Allah commands justice and doing good and giving to relatives. And He forbids indecency and doing wrong and tyranny. He warns you so that hopefully you will pay heed.' (16:90) 'Uthman said, 'That was when belief was established in my heart and I loved Muhammad.'"  

حَدَّثَنِي ابْنُ عَبَّاسٍ قَالَ بَيْنَمَا النَّبِيُّ ﷺ بِفِنَاءِ بَيْتِهِ بِمَكَّةَ جَالِسٌ إِذْ مَرَّ بِهِ عُثْمَانُ بْنُ مَظْعُونٍ فَكَشَرَ إِلَى النَّبِيِّ ﷺ فَقَالَ لَهُ النَّبِيُّ ﷺ أَلاَ تَجْلِسُ؟ قَالَ بَلَى فَجَلَسَ النَّبِيُّ ﷺ مُسْتَقْبِلَهُ فَبَيْنَمَا هُوَ يُحَدِّثُهُ إِذْ شَخَصَ النَّبِيُّ ﷺ بَصَرَهُ إِلَى السَّمَاءِ فَقَالَ أَتَانِي رَسُولُ اللهِ ﷺ آنِفًا وَأَنْتَ جَالِسٌ قَالَ فَمَا قَالَ لَكَ؟ قَالَ {إِنَّ اللَّهَ يَأْمُرُ بِالْعَدْلِ وَالإِحْسَانِ وَإِيتَاءِ ذِي الْقُرْبَى وَيَنْهَى عَنِ الْفَحْشَاءِ وَالْمُنْكَرِ وَالْبَغْيِ يَعِظُكُمْ لَعَلَّكُمْ تَذَكَّرُونَ} قَالَ عُثْمَانُ وَذَلِكَ حِينَ اسْتَقَرَّ الإِيمَانُ فِي قَلْبِي وَأَحْبَبْتُ مُحَمَّدًا