Commenting on the Prophetic saying narrated in Sahih Bukhari (#104) sayyidi wa sanadi Mufti Mohammad Taqi Usmani (Allah preserve him) said,

‘Sayedina Abu Shuraih (Allah be pleased with him) taught us a etiquette. That is, irrespective of how evil an individual is and how heinous actions he is committing even then advising or inviting him (to the truth) should be in a manner that does not dishearten him. Moreover, it should take into account his (social) status.’

Inamul Bari, volume 2, page 149