Answered by Ustadh Tabraze Azam
Question: Assalamu ‘alaykum wa rahmatullahi wa barakatuh.
If I recite, for example, surah Mulk in my ‘Isha prayer, surah Waqiah in my Maghrib prayer or surah Yasin in my Fajr prayer, will I get the same reward/benefit as reciting it after the prayer? Also, what is the benefit of reciting surah Dukhan, as someone once told me to recite it on Thursday evening?
Answer: Wa alaikum assalam wa rahmatullahi wa barakatuh,
I pray that you are in the best of health and faith, insha’Allah.
Yes, reciting Surah al-Mulk, or Surah al-Waqi`ah for instance, during a prayer will fulfil the virtue of reciting these chapters (surahs) in the evening.
It is not a condition that you recite them outside of the prayer, nor immediately after those prayers. Rather any recitation in the evening before sleep will fulfil the sunna, insha’Allah.
See: Are There Any Chapters of the Qur’an that Should be Recited Daily?
Reciting Surah al-Dukhan on the Eve of Friday
It is reported with a sound chain of transmission that the Messenger of Allah (Allah bless him and give him peace) said, “Whoever recites [Surah] Ha Mim, which mentions the smoke (al-dukhan) within it, on the night of Friday [= between Thursday Maghrib and Friday Fajr] will enter the morning forgiven.” [Abu Ya`la]
This means that you will be forgiven from your minor sins, as major sins require specific repentance. [see: Major vs Minor Sins, and Haram vs. Makruh Tahriman]
And Allah alone gives success.
Checked & Approved by Shaykh Faraz Rabbani.