It is narrated from al-Shaybani (Sulaiman bin Abi Sulaiman): Imam Sha'bi, may Allah have mercy on him, said: The one making a bequest may alter whatever he wishes in the bequest except for emancipation (in that, there can be no alteration).
Hadith Referenceسنن دارمي / من كتاب الوصايا / 3242
Hadith Gradingتحقیق (حسین سلیم أسد الدارانی):إسناده صحيح إلى الشعبي، [مكتبه الشامله نمبر: 3253]
Hadith Takhrijاس روایت کی سند صحیح ہے۔ دیکھئے: [ابن أبى شيبه 10856] ، [عبدالرزاق 16386] ، [ابن منصور 376]
It is narrated from Abdullah bin Abi Rabiah that Sayyiduna Umar bin Al-Khattab, may Allah be pleased with him, said: A man can add whatever he wishes to his will, and whichever is the last will, that will be the original one.
Hadith Referenceسنن دارمي / من كتاب الوصايا / 3243
Amr bin Dinar narrated that his father freed his slave during his illness, then he felt that he should take him back (i.e., not free him) and free other slaves instead. So those slaves disputed with me before Abdul Malik bin Marwan, and Abdul Malik validated the freedom of the latter group and annulled the freedom of the former.
Hadith Referenceسنن دارمي / من كتاب الوصايا / 3244
It is narrated from Shureid bin Suwaid that Sayyiduna Umar (may Allah be pleased with him) said: A man can make whatever (changes or) additions he wishes in his will, and the last will is the original one. Imam Darimi (may Allah have mercy on him) said: Hammam did not hear from Amr bin Shu'aib, and between the two of them is Qatadah (may Allah have mercy on him).
Hadith Referenceسنن دارمي / من كتاب الوصايا / 3245
It is narrated from Mu'ammar that Imam Zuhri, may Allah have mercy on him, was asked about a person who makes a will, then makes another will? Zuhri, may Allah have mercy on him, said: Both wills are permissible regarding his wealth (i.e., he has the right to change them).
Hadith Referenceسنن دارمي / من كتاب الوصايا / 3246
Hadith Gradingتحقیق (حسین سلیم أسد الدارانی):إسناده صحيح إلى الزهري، [مكتبه الشامله نمبر: 3257]
Hadith Takhrijاس حدیث کی سند امام زہری رحمہ اللہ تک صحیح ہے۔ دیکھئے: [عبدالرزاق 16389] ، [ابن منصور 370]