وَعدُ اللّه‏ِ حَقٌّ The Promise of Allah is true

1ـ رسولُ اللهِ‏ِ (صَلَّيَ اللهُ عَلَيهِ وَ آلِهِ): مَن وَعَدَهُ اللّه‏ُ على عَمَلٍ ثَوابا فهُو مُنجِزُهُ لَهُ، ومَن أوعَدَهُ على عَمَلٍ عِقابا فهُو فِيهِ بِالخِيارِ.

1– The Prophet (SAWA) said, ‘He whom Allah promises a reward for a good deed He will fulfill it, and he whom He has promised punishment for a deed, then it is [ultimately] His choice [whether He punishes or forgives].’[al-Tawhid, p. 406, no. 3]