وعن ابن عمر رضي الله عنهما قال‏:‏ أخذ رسول الله صلى الله عليه وسلم بمنكبي فقال‏:‏ ‏"‏كن فى الدنيا كأنك غريب أو عابر سبيل‏"‏‏.‏ وكان ابن عمر رضي الله عنهما يقول‏:‏ إذا أمسيت، فلا تنتظر الصباح، وإذا أصبحت، فلا تنتظر المساء، وخذ من صحتك لمرضك، ومن حياتك لموتك “ ‏(‏‏(‏رواه البخاري‏)‏‏)‏‏.‏

Ibn Mas'ud (May Allah be pleased with him) reported

The Prophet (ﷺ) drew up a square and in the middle of it he drew a line, the end of which jutted out beyond the square. Further across the middle line, he drew a number of smaller lines. Then he (ﷺ) said, "The figure represents man and the encircling square is the death which is encompassing him. The middle line represents his desires and the smaller lines are vicissitudes of life. If one of those misses him, another distresses him, and if that one misses him, he falls victim to another."[Al-Bukhari].