(the clerk of Al-Mughira bin Shuʿba) Once Al-Mughira dictated to me in a letter addressed to Muawiya that the Prophet ﷺ used to say after every compulsory prayer, "La ilaha illa l-lahu wahdahu la sharika lahu, lahu l-mulku wa lahu l-hamdu, wa huwa ʿala kulli shay'in qadir. Allahumma la maniʿa lima aʿtaita, wa la muʿtiya lima manaʿta, wa la yanfaʿu dhal-jaddi minka l-jadd. [There is no Deity but Allah, Alone, no Partner to Him. His is the Kingdom and all praise, and Omnipotent is he. O Allah! Nobody can hold back what you gave, nobody can give what You held back, and no struggler's effort can benefit against You]." And Al-Hasan said, "Al-jadd' means prosperity [??]."
أَنَّ النَّبِيَّ ﷺ كَانَ يَقُولُ فِي دُبُرِ كُلِّ صَلاَةٍ مَكْتُوبَةٍ لاَ إِلَهَ إِلاَّ اللَّهُ وَحْدَهُ لاَ شَرِيكَ لَهُ لَهُ الْمُلْكُ وَلَهُ الْحَمْدُ وَهْوَ عَلَى كُلِّ شَىْءٍ قَدِيرٌ اللَّهُمَّ لاَ مَانِعَ لِمَا أَعْطَيْتَ وَلاَ مُعْطِيَ لِمَا مَنَعْتَ وَلاَ يَنْفَعُ ذَا الْجَدِّ مِنْكَ الْجَدُّ وَقَالَ شُعْبَةُ عَنْ عَبْدِ الْمَلِكِ بِهَذَا وَعَنِ الْحَكَمِ عَنِ الْقَاسِمِ بْنِ مُخَيْمِرَةَ عَنْ وَرَّادٍ بِهَذَا وَقَالَ الْحَسَنُ الْجَدُّ غِنًى