290. Amīr al-mu’minīn, peace be upon him, said: Even if Allāh had not warned of chastisement on those disobedient to Him, it would be obligatory by way of gratefulness for His favours that He should not be disobeyed.
Nahj al-Balāgha #1937377. Amīr al-mu’minīn, peace be upon him said: Do not feel safe from the punishment of Allāh even about the best man in the whole community...
Nahj al-Balāgha #1893330. Amīr al-mu’minīn, peace be upon him, said: The least right of Allāh on you is that you should not make use of His favours in committing...