Hadith Q2460

إِذِ الْعَقَارُ مَشْهُورٌ بِالْمُتَصَدِّقِ مَنْسُوبٌ إِلَيْهِ مُسْتَغْنٍ بِشُهْرَتِهِ وَنِسْبَتِهِ إِلَى الْمُتَصَدِّقِ بِهِ عَنْ ذِكْرِ تَحْدِيدِهِ، وَالدَّلِيلُ عَلَى إِبَاحَةِ الْحَاكِمِ احْتِمَالَ الشَّهَادَةِ إِذَا شَهِدَ عَلَيْهَا‏.‏
This will be when the land is attributed to the person giving charity and its ownership is well-known as his; due to this attribution and fame, there will be no need for specification. And the evidence for this is that when the ruler is made a witness regarding such land, he can become a witness.
Hadith Reference صحيح ابن خزيمه / جماع أبواب صدقة التطوع / Q2460