Qadi Shurayh said: Sayyiduna Ali (may Allah be pleased with him) asked me: Who is meant by "the one in whose hand is the marriage tie" [Surah al-Baqarah: 237]? I said: He is the guardian. He said: No, rather he is the husband.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصداق / 14445