310. hadíth
وَقَالَ عَبْدُ اَللَّهِ بْنُ أَبِي يَعْفُورٍ لِلصَّادِقِ عَلَيْهِ اَلسَّلاَمُ: جُعِلْتُ فِدَاكَ يُقَالُ مَا اُسْتُنْزِلَ اَلرِّزْقُ بِشَيْءٍ مِثْلِ اَلتَّعْقِيبِ فِيمَا بَيْنَ طُلُوعِ اَلْفَجْرِ إِلَى طُلُوعِ اَلشَّمْسِ فَقَالَ «أَجَلْ وَ لَكِنْ أُخْبِرُكَ بِخَيْرٍ مِنْ ذَلِكَ أَخْذِ اَلشَّارِبِ وَ تَقْلِيمِ اَلْأَظْفَارِ يَوْمَ اَلْجُمُعَةِ.
Abdullah ibn Abi Ya'fur said to Imam Jafar ibn Muhammad Al-Sadiq (a.s): "May I be your ransom. It is said that no act brings down sustenance like ta'qeeb (supplications and prayers) between the dawn and sunrise." Imam (a.s) replied: "Indeed, but I will tell you something even better than that: trimming the mustache and cutting the nails on Jumu’ah."