Supplication for the bride and groom at the time of marriage

It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that when the Prophet (peace and blessings be upon him) congratulated a person on the occasion of his marriage, he would supplicate: 'Barakallahu laka wa baraka 'alayka wa jama'a baynakuma fi khayr' (May Allah bless you, and send blessings upon you, and keep you both together in goodness).
This hadith is sahih (authentic) on the condition of Imam Muslim, but the two Shaykhs (Bukhari and Muslim) did not record it.

It is narrated from Sayyiduna Nadrah (may Allah be pleased with him), who was a Companion from the Ansar, that he married a virgin girl, and when he went in to her he found her pregnant. Then the Prophet (peace and blessings be upon him) said: "Her dowry is established for her, because you made her private part lawful for yourself (through marriage); the child that is born will be your slave; and when she gives birth, flog her (as the prescribed punishment)."
This hadith has a sahih (authentic) chain, but the two Shaykhs (Bukhari and Muslim) did not record it.