In Order to Become a Person Who Has Hidden Knowledge: The person who recites the name یا اللہ after every prayer 100 times becomes a person who has hidden and unseen knowledge.

Hazrat Abu Huraira (رضی اللہ عنہ) says that prophet of Allah (ﷺ) said: “Is there a person who shall learn these five things from me and then act upon them or teach them to such a person who shall act upon them?” I said, “I shall learn them O Prophet of Allah (ﷺ).” So you (ﷺ) said, “Refrain from haraam (prohibited), due to this you shall become the most pious person. Be content on the division of Allah, due to this you shall become indifferent to people. Be kind to your neighbor, due to this you shall become a believer. Like for people what you like for yourself. Due to this, you shall become a Muslim. Do not laugh too much, because of excess of laughter kills the heart.” 2123 (Jaamia Tirmidhi)