Sayyiduna Jabir bin Abdullah (may Allah be pleased with them both) narrates from the Prophet (peace and blessings be upon him): "A neighbour has more right to the pre-emption of his brother. If he is absent, he is to be waited for, when their path is one and the same."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الشفعة / 11582