In a dream he is an enemy, whether old or young, because of His saying, the Exalted:
۞ لَتَجِدَنَّ أَشَدَّ ٱلنَّاسِ عَدَٰوَةً لِّلَّذِينَ ءَامَنُوا۟ ٱلْيَهُودَ وَٱلَّذِينَ أَشْرَكُوا۟ ۖ وَلَتَجِدَنَّ أَقْرَبَهُم مَّوَدَّةً لِّلَّذِينَ ءَامَنُوا۟ ٱلَّذِينَ قَالُوٓا۟ إِنَّا نَصَـٰرَىٰ ۚ ذَٰلِكَ بِأَنَّ مِنْهُمْ قِسِّيسِينَ وَرُهْبَانًا وَأَنَّهُمْ لَا يَسْتَكْبِرُونَ
“You will surely find the most intense of the people in animosity toward the believers [to be] the Jews and those who associate others with Allāh; and you will find the nearest of them in affection to the believers those who say, "We are Christians." That is because among them are priests and monks and because they are not arrogant.”
Quran 5:82 · Saheeh International
(Whoever sees) that he dealt with a Jew or kept company with him will see a person who denies what is due and procrastinates over it and pleads scarcity, while he is a man of sorcery and betrayal, a debtor who does not pay money except after delay; he is an astrologer and a deceiver. A Jewish woman is worldly gain with a promise that is not fulfilled and does not materialize.
(Whoever sees) that he became a Jew will grow bold in committing sins.
(Whoever sees) a Jew will inherit from his paternal uncle.
(Whoever sees) that he is called a Jew while disliking it, and he is wearing white clothes, will be saved from a worry and attain mercy from God Most High. An old Jewish man is an enemy who wants his enemy's destruction. It is said that seeing a Jew is guidance [huda, play on yahud]. Jews in a dream are enemies in the form of friends. Seeing Jews may indicate trouble from butchers and slaughterers.
(Whoever sees) that he is a Jew and is in a dispute will deny what he owes and lie. It is said it indicates mixing and dealing with Jews. If the dreamer is a jurist, he will conceal testimony and knowledge, because the Jews knew the truth and concealed it. If he is in debt, he will deny the right he owes and wrong its owners.