To bring your mother to Qatar, either on a Visitor Visa or through your Residency Permit (RP) sponsorship, you will need the following documents:

Visitor Visa:
Your Qatari RP (copy)
Mother's Passport (valid for at least 6 months)
Passport-sized Photos of your mother
Health Insurance for her stay
Proof of Relationship (e.g., birth certificate)
Accommodation Details (your address)
Income Proof (salary certificate/bank statement)
Visa Application Form and fee
Residency Visa:
Your Qatari RP
Mother's Passport (valid for at least 6 months)
Medical Exam for your mother
Proof of Relationship (e.g., birth certificate)
Salary Certificate (meeting minimum salary requirement)
Accommodation Proof
Medical Insurance
Completed Residency Sponsorship Application Form
Ensure you meet income and accommodation requirements before applying.for futher assistance you may read detail from https://qatarvisainfo.com/qatar-family-visit-visa/