Black Faces will be Signs of Sinners
[Qur’an 3:106-107] On the Day when faces whiten and faces blacken. As for those whose faces blacken, “Did you disbelieve after having believed? Then taste the punishment for having disbelieved. And as for those whose faces whiten, they will be in the Mercy of God, abiding therein
Black Woman is a Sign of Epidemic
[Sahih al-Bukhari 7040] Narrated Salim’s father: The Prophet said, “I saw (in a dream) a black woman with unkempt hair going out of Medina and settling in Mahai’a. I interpreted that as (a symbol of) epidemic of Medina being transferred to Mahai’a, namely, Al-Juhfa.”
[Bukhari Kitabul Fatan 3:718] “Seeing a black woman in a dream is the sign of an oncoming epidemic.”
A Black Slave’s Head Looks a Raisin (Dried Black Grape)
[Sahih Bukhari 9:89:256] Narrated Anas bin Malik: Allah’s Apostle said, “You should listen to and obey, your ruler even if he was an Ethiopian (black) slave whose head looks like a raisin.”
One Non-Black Slave Costs Two Black Slaves
[Sahih Muslim 10:3901] Jabir (Allah be pleased with him) reported: There came a slave and pledged allegiance to Allah’s Apostle (may peace be upon him) on migration; he (the Holy Prophet) did not know that he was a slave. Then there came his master and demanded him back, whereupon Allah’s Apostle (may peace be upon him) said: Sell him to me. And he bought him for two black slaves, and he did not afterwards take allegiance from anyone until he had asked him whether he was a slave (or a free man)
A Black Child Is A Sign Of Marital Unfaithfulness
[Mishkat al-Masabih 3304]
Sahl b. Sa’d as-Sa‘idi told that ‘Uwaimir al-‘Ajlani asked God’s Messenger: “Tell me about a man who finds a man along with his wife. Should he kill him and then be killed by you, or how should he act?’’ He replied, “A revelation has been sent down about you and your wife, so go away and bring her.” Sahl said that they cursed one another in the mosque and that he was along with the people who were with God’s Messenger. Then when they finished ‘Uwaimir said, “I shall have lied against her, Messenger of God, if I keep her,” and pronounced her divorce three times. God’s Messenger then said to the people, “Look, and if she bears a child which is black, and has very black eyes, large buttocks and fat legs, I cannot but imagine that ‘Uwaimir has spoken the truth about her; but if she bears a reddish child like the lizard with red spots (wahara), I cannot but imagine that ‘Uwaimir has lied against her.”
[Sunan Ibn Majah 2068] It was narrated that ‘Abdullah said: “We were in the mosque one Friday night when a man said: ‘If a man finds a man with his wife and kills him, will you kill him, and if he speaks, will you flog him. By Allah I will mention that to the Prophet. So he mentioned that to the Prophet, and Allah revealed the Verses of Li’an. Then after that the man came and accused his wife, so the Prophet told them to go through the procedure of Li’an and he said: ‘Perhaps she will give birth to a black child.’ Then she gave birth to a black child with curly hair.”