Masrūq [may Allāh have mercy on him] said:

“If one of you reaches the age of forty, then let him take precaution against [invoking the Wrath of] Allāh, the Almighty, the Majestic.”

Tafsīr Ibn Kathīr 6/490 | Al-Imām ibn Katheer [may Allāh have mercy on him]

Translation: Authentic Quotes