Most udasi deras used to hv parkash of Guru Granth Sahib.
But RSS wants to change this and they hv created a fake granth called 'sidhant sagar' and say it's Sri chand ji's bani. Many big udasi deras in punjab hv already done parkash of this fake granth in their dera.
This fake granth can be read at
https://drive.google.com/file/d/1i3fB84BqfbkHuscIIyv6HKmsX6-aj8AO/view?usp=drivesdk