Nahj al-Balāgha #2196326. Amīr al-mu’minīn, peace be upon him, said: The age up to which Allāh accepts any excuse for a human being is sixty years.
Nahj al-Balāgha #1715107. Amīr al-mu’minīn, peace be upon him, said: Often the ignorance of a learned man ruins him while the knowledge he has does not avail...