The question asked if one married a lady and then there were suckling by the same woman when they were babies, is the marriage recognised in islam?

 The question asked if one married a lady and then there were suckling by the same woman when they were babies, is the marriage recognised in islam? 

Alhamdulillah, if it is confirmed the lady had suckled them, then the marriage is nullified 

Because in islam, suckling makes marriage not permissible among a person. 

If it is five sucklings, there is no marriage between them

As reported in hadith, 

A’ishah said “In what was sent down in the Qu’ran ten suckling’s made marriage unlawful, but they were abrogated by five known ones and when theProphet (ﷺ) dies, these words were among what was recited in the Qur’an.

Sunan Abi Dawud 2062.

So the verse of suckling used to be recited in the Quran but later abrogated and the ruling changed from ten sucklings to five sucklings yet the ruling remains in islam. 

As reported again, 

Narrated `Abdullah bin Abi Mulaika:

`Uqba bin Al-Harith said that he had married the daughter of Abi Ihab bin `Aziz. Later on a woman came to him and said, "I have suckled (nursed) `Uqba and the woman whom he married(his wife) at my breast." `Uqba said to her, "Neither I knew that you have suckled (nursed) me nor did you tell me." Then he rode over to see Allah's Messenger (ﷺ) at Medina, and asked him about it. Allah's Messenger (ﷺ) said, "How can you keep her as a wife when it has been said (that she is your foster-sister)?" Then `Uqba divorced her, and she married another man.

Sahih al-Bukhari 88.

So if the woman confirms to it she suckled both the man and woman while they are married, the marriage is terminated in islam and if they have a child, the child is legally child for the father and not a child of from wedlock(outside marriage).