What is the validity of the claim that the origin of the word "Yalla" commonly used in Egypt is "Ya Allah"? What is the ruling on someone who writes "Yalla" intending "Haya" (come on/let's go), and is this considered a degradation of the word of majesty (Allah) or does it amount to mockery? What is the ruling on someone who writes the word of majesty without a space between it and punctuation marks, or the conjunction waw (and), or the waw of oath?

The word "yallah" (يلَّله) is said to have a Persian origin meaning "he loosened, he finished, he released." It is also said to have originated from "Ya Allah" (يا الله) and became a verbal noun meaning "let's go" or "come on." There is no harm in using it with this meaning, and it is not considered mockery. As for writing the majestic name of Allah without separating it from particles of oath or prepositions, or punctuation marks, there is no harm in that, as the Companions (may Allah be pleased with them) drew the Mushafs (copies of the Quran) in that manner. These kinds of objections might stem from waswasah (whispers/obsessive thoughts).