Sayyidah Aishah (may Allah be pleased with her) said that the Messenger of Allah (peace and blessings be upon him) said: "There is no zakah on any wealth until a year has passed over it."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الزكاة / 7315
Sayyiduna Ali (may Allah be pleased with him) said: If you have wealth that you have acquired, there is no zakah upon you until a year has passed over it.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الزكاة / 7316
Al-Qasim bin Muhammad (may Allah have mercy on him) said that Abu Bakr (may Allah be pleased with him) would collect zakah from wealth when a full year had passed over it.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الزكاة / 7318
Nafi' (may Allah have mercy on him) said that Ibn Umar (may Allah be pleased with them both) said: There is no zakah on wealth until a year has passed over it while with its owner.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الزكاة / 7320
Nafi' said that Sayyiduna Ibn Umar (may Allah be pleased with them both) said: When a person acquires wealth, there is no zakah on it until a year has passed.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الزكاة / 7321
Nafi' narrates from Ibn Umar (may Allah be pleased with them both): "There is no zakah on any wealth until a year has passed over it."
This is the correct version, as mawquf (a saying of Ibn Umar). Baqiyyah narrated it from Isma'il bin Ayyash from Ubaydullah bin Umar as marfu' (attributed to the Prophet), and that is not correct.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الزكاة / 7322
Ibn Umar (may Allah be pleased with them both) said that the Messenger of Allah (peace and blessings be upon him) said: "There is no zakah on the wealth of one who acquires it until a year has passed over it."
Abd al-Rahman (bin Zayd bin Aslam) is da'if (weak) and is not used as proof.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الزكاة / 7323