What is the ruling on reciting Surat Ya-Sin with the intention of fulfilling a need, stopping at the word "mubin" to recite a specific supplication, and then completing the surah? And what is the ruling on working in gold marketing through a commission system by bringing people to open accounts for purchasing gold?

Some of the hadiths in Surat Ya-Sin are weak or fabricated, and scholars have differed on the permissibility of acting upon weak hadiths. As for opening an account in a usurious bank to buy gold, it is not permissible except in cases of necessity. Furthermore, buying gold with cash requires immediate possession; delay is not allowed. However, if the account is in an Islamic bank and the sale is conducted in a Sharia (definition)-compliant manner, then there is no objection. Your work as a broker for the company is permissible if its operations are legitimate, free from usury (riba) and excessive uncertainty (gharar (definition)), and do not involve the production of prohibited items. However, if the company engages in gambling or delays the delivery of gold, then working for it is not permissible.