Is it permissible to read the Quran over a string or to tie Quranic verses inside a capsule around a child's or a Muslim's wrist for protection against the evil eye, diseases, and calamities?

It is not permissible to tie threads or wear necklaces, based on the Prophet's (ﷺ) saying: "Whoever wears an amulet, may Allah not fulfill his need," and "Whoever relies on something, will be entrusted to it," and "Whoever wears an amulet has committed shirk." The Prophet (ﷺ) commanded their removal, as narrated in the hadith of Imran ibn Husayn, where the Prophet (ﷺ) saw a man with a brass ring on his hand and asked: "What is this ring?" The man replied: "This is from Al-Wahina (a disease)." The Prophet (ﷺ) said: "Remove it, for it will only increase your weakness."