Is there a criterion that clarifies the difference between the customs of habit and the customs of worship, and when does a custom of habit become an act of worship?

The Shaykh : In summary: what was in mind is that if something is considered a custom of habit, and then a text comes encouraging it, it ceases to be a custom of habit and enters into the customs of worship. For example, his saying (peace be upon him): : Were it not for this hadith, the Prophet’s (peace be upon him) wearing of white would have been a matter of personal taste. So if it is your taste to wear white, then wear white, if that is the correct expression, otherwise not. But since a hadith like this came: : this custom has been elevated to the level of recommended and prescribed Sunnahs. This is what can be said on this occasion. Yes.