Al-Hasan narrates from Samurah or Uqbah (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) said: "When two guardians conclude a marriage, the first has the greater right; and when two people transact a sale, the first has the greater right."
This difference in the chain of this hadith came from Ibn Abi Arubah; Aban al-Attar followed him from Qatadah in saying "from Uqbah bin Amir", and the correct version is the narration of those who narrated it from Samurah bin Jundub.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 13806