Al-Kāfi
Hadith 132221ـ مُحَمَّدُ بْنُ الْحَسَنِ عَنْ سَهْلِ بْنِ زِيَادٍ بِإِسْنَادِهِ عَنْ سَمَاعَةَ بْنِ مِهْرَانَ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلام) قَالَ مَنْ سَبَقَتْ أَصَابِعُهُ لِسَانَهُ حُسِبَ لَهُ.
21. Muhammad ibn al-Hassan has narrated from Sahl ibn Ziyad through his chain of narrators from Sama‘ah ibn Mehran who has said the following: “Abu ‘Abd Allah (a.s.), has said, ‘Whoever’ s fingers may move faster than his tongue it is counted in his favor (according to the movement of the former).”’