There is no specific amount because the rules suggest that your contribution depends on your earnings. Instead, your pensionable income will determine your contribution to CPP disability assistance. For instance, in 2019, $5700 annually was the required minimum contribution to qualify for CPP disability payments.
In 2023, you need to earn a minimum of $3,500 annually to contribute. You can not make CPP contributions if your annual income is below the threshold. Also, note that Canada Pension Plan (CPP) for disability is higher than the only retirement pension amount.