Sunan Ibn Majah Book 15, Hadith 32
“Whoever demands his rights let him do so in a decent manner as much as he can.”
“A man died and it was said to him: 'What did you do?' Either he remembered or was reminded and said: 'I used to be easy going in coins and cash collecting debts due, and I used to give respite to (the debtor) who was in difficulty. So, Allah (SWT) forgave him.' ” Abu Masud said: “I heard that from the Messenger of Allah (ﷺ).”
“Take your rights in a decent manner as much as he can.”