After the Rebbe consistently refused to accept the nesius, chassidim wrote a pann to the Frierdiker Rebbe begging him to intercede, and they asked the Rebbe to read it at the Ohel. The Rebbe pushed it away until he couldn’t anymore.
Reb Yoel Kahan relates:
10 Shevat 5711 (1951) was approaching. It was now almost a full year since the histalkus of the Frierdiker Rebbe, and the Rebbe was still refusing to formally accept the nesius. The Rebbe had agreed to be a messenger to take panim to the Ohel of the Frierdiker Rebbe but was still rejecting panim addressed to the Rebbe himself.
A few elder chassidim wrote a pan to the Frierdiker Rebbe, imploring him to influence his son-in-law, the Rebbe, to accept the nesius. They then gave this pan to the Rebbe to take to the Ohel.
The Rebbe stood at the Ohel holding a large pile of panim, reading them one by one. When the Rebbe reached this pan, the Rebbe moved it lower in the pile. When the pan showed up again, again the Rebbe moved it back.
Until this was the only pan left.
The Rebbe opened it and began reading. As the Rebbe read it, the Rebbe cried profusely.
(Bedarkei Hachasidim, page 206)
From The Weekly Farbrengen by Merkaz Anash