Ubaidullah bin 'Umar bin Hafs عبيد الله بن عمر بن حفص بن عاصم · The Chapters on Marriage

Thawban said: “When the Verse concerning silver and gold was revealed, they said: 'What kind of wealth should we acquire?' Umar said: 'I will tell you about that.' So he rode on his camel and caught up with the Prophet, and I followed him. He said: 'O Messenger of Allah what kind of wealth should we acquire?' He said: 'Let one of you acquire a thankful heart, a tongue that remembers Allah and a believing wife who will help him…

that the Messenger of Allah said: “Three days for a previously-married woman and seven days for a virgin.”

"Wouldn't a woman feel too shy to offer herself to the Prophet?" Until Aileh revealed; "You (O Muhammad) can postpone (the turn of) whom you will of them (your wives), and you may receive whom you will.” She said: "Then I said: 'Your Lord is quick to make things easy for you."'

she heard the Messenger of Allah say: "Do not kill your children secretly, for by the One in Whose Hand is my soul, intercourse with a breastfeeding woman catches up with people when they are riding their horses (in battle) and wrestles them to the ground."