that the Prophet used to say, when offering congratulations of the occasion of marriage: “Barak Allahu lakum, wa barak 'alaikum, wa jama'a bainakuma fi khair (May Allah bless you and bestow blessings upon you, and bring you together in harmony).”
that he married a woman from Banu Jusham, and they said: “May you live in harmony and have many sons.” He said: “Do not say that, rather say what the Messenger of Allah said: 'Allahumma barik lahum wa barik `alaihim (O Allah, bless them and bestow blessings upon them).' ”
the Prophet saw traces of yellow perfume on 'Abdur-Rahmaan bin 'Awf, and he asked him “What is this?” He said: “O Messenger of Allah, I married a women for the weight of a Nawah (Stone) of gold. He said: “May Allah bless you. Give a feast even if it is only with one sheep.”
“The Messenger of Allah commanded us to prepare Fatimah (for her wedding) and take her in to 'Ali. We went to the house and sprinkled it with soft earth from the land of Batha'. Then we stuffed two pillows with (date - palm) fiber which we picked with our own hands. Then we offered dates and raisins to eat, and sweet water to drink. We went and got some wood and set it up at the side of the room, to hang the clothes and water skins on. And we never saw any wedding better than the wedding of Fatimah.”
حَدَّثَنَا مُحَمَّدُ بْنُ الصَّبَّاحِ، أَنْبَأَنَا عَبْدُ الْعَزِيزِ بْنُ أَبِي حَازِمٍ، حَدَّثَنِي أَبِي، عَنْ سَهْلِ بْنِ سَعْدٍ السَّاعِدِيِّ، قَالَ دَعَا أَبُو أُسَيْدٍ السَّاعِدِيُّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ إِلَى عُرْسِهِ فَكَانَتْ خَادِمَهُمُ الْعَرُوسُ . قَالَتْ تَدْرِي مَا سَقَيْتُ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ قَالَتْ أَنْقَعْتُ تَمَرَاتٍ مِنَ اللَّيْلِ فَلَمَّا أَصْبَحْتُ صَفَّيْتُهُنَّ فَأَسْقَيْتُهُنَّ إِيَّاهُ .
“Abu Usaid As-Sa'idi invited the Messenger of Allah to his wedding, and the bride herself served them. She said: 'Do you know what I gave the Messenger of Allah to drink? I had soaked some dates the night before, then in the morning I strained them and gave him that water to drink.' ”
“The worst of food is food of a wedding feast to which the rich are invited and the poor are not. Whoever does not accept an invitation has disobeyed Allah and His Messenger.' ”