Some chains combine verbal and practical seriality. A narrator may describe a teacher holding his beard while saying “I believe in divine decree” (āmantu bi-l-qadar). If later transmitters repeat both the act and expression, the chain displays combined verbal and practical seriality.
Three questions are separate:
1. Is the stated phrase actually transmitted?
2. Is the accompanying action attested?
3. Are both features present across the claimed generations?
A mention of divine decree in the hadith text, or one narrator touching his beard, does not establish an uninterrupted combined series.