Kavod Harav,
Once a while I may need to leave the Minyan before the end of Tefilah during Shacharit prayer, assuming there is no earlier Minyan available.
Can I leave after Tachanun and say the rest later during the day?
Or can I say Ashre until Aleynu during Chazarat Hashats and then say Tachanun with the minyan and right after say Aleynu and leave?