Obligation of Tableegh

[In the context of Suratul Asr, Moulana Ashraf Ali Thanvi (ra) mentions in one bayaan

In the name of Allah, Most Gracious, Most Merciful

103:1 By Al-‘Asr (the time).
103:2 Verily! Man is in loss,
103:3 Except those who believe (in Islamic Monotheism) and do righteous good deeds, and recommend one another to the truth and recommend one another to patience.
]

“At this moment, I would like to caution you all about one thing. Just as Allah (SWT) has made the ‘state of loss’ dependant on ‘Emaan’ and ‘righteous deeds’, similarly Allah has also made it dependant on ‘tawaseeh bil haqq’. Tawaseeh bil haqq means to advise each other and to do tableegh (propagation) of deen.

“Allah (SWT) is giving us the commandment of tableegh (especially) with regards to this calamity of apostasy which is spreading widely (within our ummah). Tableegh needs to be done to those Muslim brothers who are caught in this calamity or have a fear of being caught. We need to inform them about the boundaries of Islam and save them from apostasy. Tableegh is an obligation upon us, both in primary tenets of deen, and its branches. We can clearly understand its fardhiyyah (obligation) from this subtlety, that just as we have been commanded with Emaan and righteous deeds, in the same breath the command for tawaseeh bil haqq has been given. And, the state of loss has been made dependent upon all these factors.

“Now, let us check the state of our negligence. How much time from the twenty-four hours of a day do we spend carrying out this obligation upon those people who are not under our direct responsibility (e.g Muslim brothers, sisters etc.)? Leave that aside, we do not even carry this obligation upon those who are under our direct responsibility (eg. wife, children)!”

Khutbaat Hakeemul Ummat, vol. 13, pg. 156