My signature contains the words "ALLAHU AKBARU". Is this prohibited?
All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.
Saying Takbeer: Allahu Akbar (Allah is Great) is remembering Allah, The Almighty. This should be said in many situations e.g. in Athaan, in Salah and when being surprised or overwhelmed. It is narrated in a Hadeeth that when Allah's Messenger, sallallaahu ‘alayhi wa sallam, went out to the battle of Hunayn he passed a tree called Dhaat Anwaat belonging to the polytheists, on which they hung their weapons. The people asked him to appoint a Dhaat Anwaat for them just as those people had one, to which Allah's Messenger, sallallaahu ‘alayhi wa sallam, replied, الله أكبر "Allah is The Greatest! This is like what the people of Moses said when they asked him to appoint them a god just as other people had gods. By Him in Whose hand my soul is, you will certainly follow the practices of your predecessors." [Ahmed].
We believe that it is unlawful to use "Allahu Akbar" as a signature as this might diminish this great expression. In addition to this signature is usually the name of the signing person or some of his characteristics and the Takbeer has no bearing here.
The Prophet, sallallaahu ‘alayhi wa sallam, used to sign with محمد رسول الله which was engraved in his ring.
Allah Knows best.
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