In how many modes the Quran was revealed

Sayyidah Umm Ayyub (may Allah be pleased with her) said that the Prophet (peace and blessings be upon him) said: "The Qur'an was revealed upon seven modes (ahruf); whichever mode you recite with, you will be correct."

Amr said that the Messenger of Allah (peace and blessings be upon him) said: "The Qur'an was revealed upon seven modes (ahruf), each of them sufficient and healing."

Sayyiduna Abu Hurayrah (may Allah be pleased with him) said that the Messenger of Allah (peace and blessings be upon him) said: "The Qur'an was revealed upon seven modes (ahruf): He, Allah, is All-Knowing, All-Wise, Oft-Forgiving and Most Merciful."

Sayyiduna Ubayy bin Ka'b (may Allah be pleased with him) said that the Messenger of Allah (peace and blessings be upon him) said: "Indeed, my Lord sent a messenger to me, that I should recite the Qur'an upon seven modes (ahruf)."

Sayyiduna Ubayy bin Ka'b (may Allah be pleased with him) said that Jibril came to the Prophet (peace and blessings be upon him) and said: "Allah commands you (peace and blessings be upon him) to teach your Ummah to recite the Qur'an upon seven modes (ahruf). Whichever mode they recite with, they will be correct."

Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) said that the Prophet (peace and blessings be upon him) said: "The Qur'an was revealed upon seven modes (ahruf)."

Sayyiduna Abu Bakr (may Allah be pleased with him) said that Jibril said to the Prophet (peace and blessings be upon him): "Recite the Qur'an upon one mode (harf)." Mika'il said to him: "Increase it." Jibril said: "Recite it upon two modes." Then Mika'il said: "Increase it," until they reached seven modes, each of which is healing and sufficient, like your saying "halumma" and "ta'al," both of which have one meaning: "come." This holds so long as one does not complete a verse of mercy with a verse of punishment, or a verse of punishment with a verse of mercy.

Sayyiduna Ubayy (may Allah be pleased with him) said that the Prophet (peace and blessings be upon him) said: "Recite the Qur'an upon seven modes (ahruf); each mode is healing and sufficient."

Sayyiduna Sulayman bin Surad (may Allah be pleased with him), through Sayyiduna Ubayy (may Allah be pleased with him), said that the Prophet (peace and blessings be upon him) said: "Recite it upon seven modes (ahruf)."

Sayyiduna Samurah (may Allah be pleased with him) said that the Prophet (peace and blessings be upon him) said: "The Qur'an was revealed upon three modes (ahruf)."

Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) said that the Messenger of Allah (peace and blessings be upon him) said: "Indeed, the Qur'an was revealed upon seven modes (ahruf), so recite in whatever way is easy for you."

Sayyiduna Ubayy (may Allah be pleased with him) said that Jibril met the Prophet (peace and blessings be upon him) and said: "Command your Ummah to recite the Qur'an upon seven modes (ahruf)."