[Machine] It was mentioned in the presence of the Messenger of Allah ﷺ that a man testifies with a testimony. So he said: "As for you, O Ibn Abbas, do not testify except for a matter that is clear to you like the brightness of this sun." And the Messenger of Allah ﷺ pointed with his hand towards the sun and said: "Muhammad ibn Sulaiman ibn Masmaul spoke about this." Al-Humaidi spoke about it, but it is not known if it was reliable or not. And Allah knows best.  

ذُكِرَ عِنْدَ رَسُولِ اللهِ ﷺ الرَّجُلُ يَشْهَدُ بِشَهَادَةٍ فَقَالَ أَمَّا أَنْتَ يَا ابْنَ عَبَّاسٍ فَلَا تَشَهَدْ إِلَّا عَلَى أَمْرٍ يُضِيءُ لَكَ كَضِيَاءِ هَذِهِ الشَّمْسِ وَأَوْمَى رَسُولُ اللهِ ﷺ بِيَدِهِ إِلَى الشَّمْسِ مُحَمَّدُ بْنُ سُلَيْمَانَ بْنِ مَسْمُولٍ هَذَا تَكَلَّمَ فِيهِ الْحُمَيْدِيُّ وَلَمْ يُرْوَ مِنْ وَجْهٍ يُعْتَمَدُ عَلَيْهِ وَاللهُ أَعْلَمُ