When Allah عزوجل sent Sayyiduna Musa عَلیہِ السلاَم in the court of pharaoh for guiding him, Allah عزوجل bestowed Sayyiduna Musa عَلیہِ السلاَم with two miracles, one of which was ‘the blessed staff’ and the other was the miracle of ‘the glowing hand’. When Sayyiduna Musa عَلیہِ السلاَم used to put his hand into the neck of his shirt, upon drawing it out, it would begin to glow! When he عَلیہِ السلاَم would place his blessed hand again in the neck of his shirt, it would restore its original condition. The Holy Quran has mentioned this miracle repeatedly in different chapters. For example, it is mentioned in Surah Taahaa:
And join your hand with your arm1 – it will come out crystal white, not due to any illness – one more sign. That we may show you Our great signs.
[Kanz-ul-Iman (Translation of Quran)] (Part 16, Surah Taahaa, verse 22-23)
This miracle is known as بيضاء) يد )(the glowing hand) and it is a unique and a wonderful miracle. Sayyiduna Ibn ‘Abbas رَضی اللہ عَنھُمَا has narrated that during the day and night, Noor (light) would radiate from the sacred hand of Sayyiduna Musa عَلیہِ السلاَم as it radiates from the sun.
(Khaza`in-ul-‘Irfan, pp. 563; part 16, Surah Taahaa, verse 22)