What is the reason for tearing and yawning when invoking blessings upon the Prophet, peace and blessings be upon him, 100 times and reciting Surat Al-Falaq ten times, immediately after Friday prayer?

We do not have what definitively asserts the reason for what is happening to you, but yawning occurs due to Satan or from repletion and bodily heaviness, and it is often accompanied by tears. Increasing prayers upon the Messenger, peace and blessings be upon him, on Friday is encouraged, but a specific number should not be designated at a specific time without a text [from revelation], for fear of falling into an additive innovation. This ruling applies to designating a specific number for a specific Sura at a specific time.