Try this arm toning workout that avoids added pressure on the belly tissues where ab separation occurs (aka diastasis recti).
Diastasis Recti Safe Arms Workout - Moms Into Fitness
What to know about diastasis recti
Diastasis Recti and Pilates - Elevate Physiotherapy
Diastasis Recti Exercises: 5 Moves for New Moms - Girls Gone Strong
How to Really Know Which Exercises Are Safe for Your Diastasis
Your postpartum workout plan
Safe Diastasis Recti Exercises - Tips for Safe Workouts
Diastasis Recti Safe Arms Workout - Moms Into Fitness
CRUCIAL Diastasis Recti Exercises For Postpartum Moms
PRENATAL CORE STRENGHTHWORKOUT: STAY STRONG IN PREGNANCY
Diastsis Recti in Pregnancy and Postpartum - Moms Into Fitness
Diastasis Recti Exercises: What's Safe and What's Not?