"O you who have believed, remember Allah with much remembrance" (Al-Ahzab: 41) means: with the tongue, and this is a remembrance that has no set time.

Yahya narrated from Khadash, from Maymun ibn 'Ajlan, from Maymun ibn Siyah, from Anas ibn Malik, who said: The Messenger of Allah (peace be upon him) said: "There is no group of people who gather to remember Allah, desiring by that nothing but His countenance, except that a caller from the heaven calls out to them: 'Rise, you are forgiven, for your bad deeds have been replaced with good deeds.'" From the hadith of Yahya ibn Muhammad.