Ruling on reading supplications from a paper during prayer

Question:
The sister H. M. from Casablanca in Morocco says in her question: I do not memorize much of the supplications, so is it permissible for me to write some supplications on a paper and read them outside of prayer and during it?

Answer:
There is no harm in a person reading a supplication from a paper if he does not memorize it, and he writes the supplication on a paper and reads it at the times he likes to make supplication, such as the last part of the night, during the night, or other times. However, if it is easy for him to memorize it and read it with presence of heart and humility, that would be more complete.
As for in prayer, it is better to have it memorized, and for the supplications to be brief and concise. If one reads from a paper during the tashahhud, for example, or between the two prostrations, there is no blame on him. But for the supplicant to memorize the supplication, that is closer to humility. And success is from Allah.