Praise be to Allaah.
It seems that there is nothing wrong with getting people's
attention by saying “Remember Allah” or “Send blessings upon your Prophet
(blessings and peace of Allah be upon him).
Shaykh Ibn ‘Uthaymeen (may Allah have mercy on him) said:
Some of our scholars, when they want to say something or give
an exhortation from time to time, stand up and say: “Send blessings upon the
Messenger of Allah,” then they speak briefly. Then they say to them after
that, “Send blessings upon the Messenger of Allah.”
Was this narrated from the Messenger (blessings and peace of
Allah be upon him)?
He replied:
What was narrated from the Prophet (blessings and peace of
Allah be upon him) in sermons and speeches was that he would start by
praising Allah, but there is nothing wrong with a person sending blessings
upon the Prophet (blessings and peace of Allah be upon him) after that. So
he may recite the Shahaadah and say: Ashhadu an laa ilaaha ill-Allaah wa
ashhadu anna Muhammadan ‘Abduhu wa Rasooluhu (I bear witness that there
is no god but Allah and I bear witness that Muhammad is His slave and His
messenger), and send blessings upon the Prophet (blessings and peace of
Allah be upon him) then say, Amma ba’d (to proceed), and start on the topic
of his speech.
But some khateebs, when they see that the people are not
paying attention, tell them, “Say, Laa ilaaha ill-Allaah” or “Remember
Allah.” And some of them say, “Send blessings upon the Prophet (blessings
and peace of Allah be upon him),” intending thereby to get the people's
attention. And some of them say, “Pay attention and listen,” and so on.
It seems to me that those who say this during the khutbah do
not intend that the listeners should do this act of worship; rather their
aim is to get the attention of their audience.
I do not think that there is anything wrong with this, in sha
Allah. End quote.
Fataawa Noor ‘ala al-Darb (Fataawa Mutafarriqah/ al-da’wah
wa’l-Amr bi’l-Ma’roof wa’l-Nahy ‘an al-Munkar)
And Allah knows best.