Prohibition For Imitating Other Nations
Prohibition of imitating other nations is not a general law. Prophet himself was asked in the Quran to follow the creed and practices of previous prophets. Hadith narrations in this regard have to do with the presence of polytheistic beliefs in a certain practice or some other factors that are against the objective of Islam: tazkiya (purity). Some of these narrations are also in the context of punishment (azab) that was about to be rendered upon the deniers of Prophet Muhammad as a result of Itmam-e-Hujjah. Each such narration must be understood within the framework of Islam given in the Quran and the Sunnah. The following thread will help you learn how to understand hadith narrations in general: Discussion 1042 Also the following FAQ will help you understand the law of Itmam-e-Hujjah: Discussion 37972 There are no credible hadith narrations in my knowledge regarding Ashura that give the impression of opposing the Jews. If you want to understand a specific credible narration, please create a separate discussion with proper references for that narration.