Musannaf Ibn Abi Shayba 7:484

Abu Usama narrated to us, from Nafi’, from Ibn Umar, who said: I heard ‘Ata’ being asked about a woman who swore by the manumission of her slave girl that she would not speak to her neighbor for four years, then her slave girl died, and she wished to speak to her neighbor. He said: "She may speak to her and give something in charity." And Ibn Abi Mulayka said: "I do not see any breach of oath upon her."