His late wife demanded their children cut relations with him if he remarried
7-11-2014 | IslamWeb
Question:
my wife die 2 year back ,i am 49 years old i have a daughter 20 year son 18 year ,now i want to get marry but my children say there mother has asked them if she die , my children should not allow me to get marry again they should not keep any relation if i do so and her soul will not be in peace. They are now confuse what to do as they also want me to get marry.please advice.
Answer:
All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu ‘alayhi wa sallam, is His slave and Messenger.
Marriage is a matter of virtue that the religion encourages. A Muslim who is capable of getting married should not abstain doing so; it is even deemed obligatory if the person fears falling into temptation as underlined in Fataawa 84026 and 81853.
In fact, refraining from marriage with no legitimate impediment while being able to get married is contrary to the guidance of the Prophet, sallallaahu ‘alayhi wa sallam. Anas 
reported that the Prophet, sallallaahu ‘alayhi wa sallam, said: “… and I take marry; so whoever turns away from my Sunnah is not of me.” [Al-Bukhari and Muslim]
Imam Ahmad 
said, “Being single is not compatible with Islam.”
The Companions 
were keen on getting married. Ruqayyah, the Prophet’s daughter 
was married to ‘Uthmaan . When she passed away, the Prophet, sallallaahu ‘alayhi wa sallam, married off her sister Umm Kulthoom to ‘Uthmaan.
The wife does not have the right to bequest that her husband should not remarry after her death or request her children to sever their relations with their father if he remarries. It is impermissible for the children to execute such an invalid bequest; it is even prohibited for them to obey such a command even if their mother asked them to do so before her death because it involves undutifulness (to their father) and severing ties of kinship.
Allaah Knows best.