ANSWER:

Reward of memorizing Qur’an and reciting are different.

There is no special virtue of memorizing or reciting surah Yaseen alone.

https://islamqa.info/en/answers/75894/the-virtues-of-soorat-ya-seen

Sheikh, are rewards same for one to memorize the surah yaseen or to recite it..?

Innovations, Reading/Reciting the Quran | September 8, 2020 7:57 pm
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Sheikh, i want to know which is more rewardable to memorize of the following:- 99 names of Allah (SWT) or Yaseen as i am curious to know about its reward!
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I heard few days back that what is the historical importance of Attahiyat is. It was written that Attahiyat is the conversation between Hazrat Muhammad PBUH and Allah Almighty on the night of Mairaj. I want to ask that is this mentioned anywhere in the Ahadith books and if yes then is it authentic? And what’s the history behind this being part of our prayers!