It is narrated from Sayyiduna Abdullah bin Ja'far (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) said: "I have been commanded to give Khadijah (may Allah be pleased with her) the glad tidings of a house in Paradise made of qasab (hollow pearl), in which there will be neither noise nor fatigue."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 13776