It is narrated from Hazrat Abu Umamah (may Allah be pleased with him) that once the Noble Prophet (peace and blessings be upon him) came out and a preacher was delivering a sermon. When the Noble Prophet (peace and blessings be upon him) was seen, the preacher became silent. The Noble Prophet (peace and blessings be upon him) said: Continue delivering your sermon. In my view, sitting and remembering Allah from the time of sunrise is better than freeing four slaves from among the descendants of Ismail (peace be upon him). Similarly, remembering Allah from the Asr prayer until sunset is, in my view, better than freeing four slaves from among the descendants of Ismail (peace be upon him).