Reference for Bava Batra 346:10

מתקיף לה רב חסדא הא קבלנות היא דכתיב (בראשית מב, לז) תנה אותו על ידי ואני אשיבנו

for it is written, <i>Deliver him into my hand,<span class="x" onmousemove="('comment',' 'Into my hand' implies unconditional responsibility. ');">¹⁸</span></i> and I will bring him back to thee!<span class="x" onmousemove="('comment',' Ibid. XLII, 37. [Although this was said by Reuben, it is unlikely that Judah's guarantee involved less responsibility than that of Reuben's which Jacob had rejected (Maharsha).] ');">¹⁹</span>

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