It is narrated from al-Qasim bin Muhammad (may Allah have mercy on him) that whenever Sayyiduna Abu Bakr al-Siddiq (may Allah be pleased with him) gave a man a state stipend or gift, he would ask him: "Do you already have wealth?" If the man said: "Yes," he would say: "(Then) pay its zakah." But if he had no wealth beforehand, he would say that no zakah was due on the wealth of this gift until a year had passed over it.
I (Ibn Hajar) say: Its chain is sahih (authentic), except that it is broken (munqati') between al-Qasim and his grandfather Sayyiduna al-Siddiq al-Akbar (may Allah be pleased with him) (that is, his hearing from him is not established).
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب الزكاة / 895
Hadith Gradingمحدثین:إسناده صحيح، منقطع
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :قال ابن حجر: إِسْنَادُهُ صَحِيحٌ ، إِلَّا أَنَّهُ مُنْقَطِعٌ بَيْنَ الْقَاسِمِ وَجَدِّهِ الصِّدِّيقِ - رَضِيَ اللهُ عَنْهُ - . » «أخرجه مالك فى «الموطأ» برقم: 837، والبيهقي فى«سننه الكبير» برقم: 7413، 7449، وأورده ابن حجر فى "المطالب العالية"، 895، وأخرجه عبد الرزاق فى «مصنفه» برقم: 7024، 7025، وأخرجه ابن أبى شيبة فى «مصنفه» برقم: 10564، 10568»