Q: Is it permissible to make Tayammum if one fears missing the Janazah Salah?
A: If there is a fear that Janazah Salah will be missed due to making wudhu then it would be permissible to make Tayammum and join the Janazah Salah even though water is available. This only applies to Janazah and Eid Salah.
And Allah knows Best
Darul Ihsan Fatwa Department