Question 4: Hadeeth – “Anyone who bathes on the Day of ‘Ashooraa’ will not be sick during that whole year.”
Answer: All the Hadeeths mentioned in respect of bathing on the Day of ‘Ashooraa’ (10th of Muharram), wearing Kuhl (antimony powder eyeliner), dying (with Henna), in addition to other acts observed by Ahl-ul-Sunnah (those adhering to the Sunnah) in opposition to the Shiites are Mawdoo‘ (fabricated Hadeeth) except for those mentioned about Sawm (Fast).
Shaykh Al-Islaam Ibn Taymiyyah (may Allaah be merciful to him) mentioned in “Al-Fataawaa” Volume (4) page (513) what reads: (Some people among those who claim themselves as followers of the Sunnah narrated many Hadeeth Mawdoo‘ on which they based what they made as a slogan for them on that day – meaning the day of ‘Ashooraa’ – with which they also contradicted with those people – meaning Al-Raafidah (a Shiitic group). Therefore, they confronted a void act with another void act, and refuted a Bidd‘ah (innovation in religion) by introducing another. Nevertheless, there was one which was indeed more grievous and supportive of the atheists than the other – he meant the Bidd‘ah of Al-Raafidah – such as the long Hadeeth that reads… read more here.