# DS303

Source: https://xmlvalid.com/rules/DS303

> Signing time not found: the signed properties need xades:SigningTime.

- Level: error
- Rule sets: MyInvois validations of LHDN (Malaysia) MyInvois SDK of 25 September 2026
- Context: `/*`
- Test: `not($signature) or normalize-space($signature/ds:Object//xades:SigningTime) ne ''`

Validate a document against these rules: https://xmlvalid.com/validate