Sending blessings upon the Prophet (blessings and peace of Allah be upon him) when he is mentioned in obligatory and naafil prayers
Question

If a person recites a verse whilst praying in which there is mention of the Prophet (blessings and peace of Allah be upon him), should you send blessings upon him because of mentioning him, or is sending blessings upon him not among the actions of prayer except at the appropriate point in the Tashahhud, so it should only be done then and not at any other point?.
Praise be to Allah.In the obligatory prayer, that should not be done, because there is no report of that from the Prophet (blessings and peace of Allah be upon him). But in the naafil prayer, there is nothing wrong with it, because when he (blessings and peace of Allah be upon him) prayed tahajjud at night, he would pause at every verse in which Allah was glorified and glorify Him, and at every verse that mentioned seeking refuge with Allah and seek refuge with Him, and at every verse that mentioned asking and ask of Him. Sending blessings upon him (blessings and peace of Allah be upon him) falls into the same category. 
And Allah is the source of strength. End quote.