Abdullah bin Adam says: A freed slave of Sayyiduna Anas bin Malik (may Allah be pleased with him) died in the evening, and Sayyiduna Anas (may Allah be pleased with him) said: Place something made of iron on his stomach.
Imam al-Sha'bi (may Allah have mercy on him) narrates that he was once asked about placing a sword on the stomach of the deceased, and he said: It is placed out of fear that he may swell.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجنائز / 6610
It is narrated from Abdullah bin Abbas (may Allah be pleased with them both) that when the preparation of the Prophet (peace and blessings be upon him) was completed on Tuesday, he (peace and blessings be upon him) was placed on a bed in his house.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجنائز / 6611