During the Gaza crisis people have been gathering in Musjids to recite khatam of Surah Yaaseen in congregation.

Answer

The collective recitation of Yaaseen Shareef after Isha for the ostensible purpose of making dua for the afflicted Palestinian Muslims is another trick of the nafs to divert people from the Sunnah, to implicate them into bid'ah and to appease their taste for riya. There is no such practice in the Sunnah. Although Dua-e-Qunoot was recited by Rasulullah (sallallahu alayhi wasallam), he did it only once in his lifetime. It was not a standard practice among the Sahaabah. Furthermore, due to the riya nowadays being dominant, especially in the imams who conduct the Dua-e-Qunoot, Hadhrat Maulana Ashraf Ali Thanvi (rahmatullah alayh) discouraged even Dua-e-Qunoot. He was of the view – and that is our view too – that those who are genuinely concerned and sincere, should perform Salaat individually and make dua in silence for the removal of the calamity. Nowadays even ibaadat is transformed into a pantomime show.