Does it pain a deceased father if charitable donations to him are temporarily interrupted due to an excuse?

Charity given on behalf of one's deceased parent is a form of kindness towards them and elevates their status. The Prophet, peace and blessings be upon him, was asked about showing kindness to parents after their death, and he mentioned four qualities: praying for them, seeking forgiveness for them, fulfilling their pledges, honoring their friends, and maintaining ties of kinship connected through them. There is no harm in discontinuing the charity, but it is recommended to continue it, even if with a small amount, or to establish an ongoing charity (Sadaqah (definition) Jariyah). If one is completely unable, then "Allah does not burden a soul beyond its capacity."