Is writing the alif above the shaddah on the lam in the word of Majesty [Allah] a mistake, and is it considered disbelief, or is this excessive scrupulousness?

The alif in the Glorious Name (Allah) between the lam and the ha was omitted due to its frequent repetition in writing and pronunciation, as stated in "Daleel Al-Hayran wa Mawrid Al-Dham'an." As for placing an alif above the lam of the Glorious Name, there is no recorded opinion that supports it, nor is it considered disbelief. It is clear that the questioner is suffering from obsessions, and it is advised to disregard them.