They were performed instantaneously with no strings attached, to subdue the disbelievers and to increase the faith of those who believed in the Prophet. Another point worth remembering is that no Prophet of Allah had ever boasted about these miracles, let alone advertises them.
Miujiza ilifanywa papo kwa hapo. Pasipokuambatanishwa na masharti, ili kuwashinda Makafiri na kuwaongezea Imani wale waliomuamini Mtume. Nukta nyingine muhimu kukumbuka ni kuwa hakuana Nabii yeyote wa Allah aliyejisifu kwa miujiza hii achalia mbali kuitangaza.