Imām Muḥammad ibn Ṣāliḥ al-ʿUthaymīn – hafiẓahullāh- said:

“Hastening (to do good) is the opposite of being lazy and sluggish. So whenever a person is lazy and sluggish, then he will certainly miss out on a lot of good. This is why the Prophet ﷺ said: “The strong Believer is better and more beloved to Allāh that a weak Believer, yet in each of them there is good. So be eager in doing that which will benefit you, seek the help of Allāh. and do not be lazy.” ¹ … Sometimes, due to a person’s laziness in doing good actions, he ends up not doing the good; either because death overtakes him, or he is struck with some illness (which incapacitates him) or the opportunity just passes him by. The Prophet ﷺ said about this: “When anyone of you intends to perform the Ḥajj (Pilgrimage), then let him hasten in doing so; for perhaps he may later be struck with an illness, or he may lose his riding beast, or he may be diverted by some other need.”² Thus, there are many reasons which may prevent a person from doing good, so one must hasten in doing good and not be lazy.”³

Endnotes:
[1] Related by Muslim (no. 2664).
[2] Ḥasan: Related by Ibn Mājah (no. 2883). It was authenticated by al-Albānī in Ṣaḥīḥ al-Jāmiʿ(no. 6004).
[3] Sharḥ Rīyaḍus-al-Ṣāliḥīn (3/7-8), slightly abridged.