Forgoing immersion for the Beis HaMikdash
Regarding the prohibition against bathing on Tishah B'Av, Rav Chanina said: "The house of God merits that for its sake a man should forgo an immersion once a year."
Source: Taanis 13a
Regarding the prohibition against bathing on Tishah B'Av, Rav Chanina said: "The house of God merits that for its sake a man should forgo an immersion once a year."
Source: Taanis 13a